HydraShell Premium underlayment is among the safest, strongest and best-performing solutions on the market. It is both lighter and stronger than Type 15 or 30 felt and is easier to handle during installation. HydraShell Premium won’t buckle, warp or crack, and it is backed by a limited lifetime warranty.
HydraShell Premium is rated for commercial and residential applications using plastic caps and roofing nails (3/8” head) and is an ideal roof underlayment for asphalt shingles, metal, tile, slate and a variety of other sloped roofing materials. Its skid-resistant polymer coating and proprietary Fiber Claw™ walking surface offer dynamic steep-slope traction for easier installation in a variety of weather conditions.
Warranty: Limited Lifetime
Tensile Strength (ASTM D882): 126 lbs MD/92 lbs CD
Tear Resistance (ASTM D4533): 41 lbs MD/37 lbs CD
Rupture Resistance (ASTM D3462-02): 87 LBF
Beach Puncture (ICC AC-08): Pass
Long-Term Sag (ICC AC-08): Pass
Liquid Water Transmission (ASTM D4869-02): Pass
Ultra Violet Aging (ICC-ES AC 188): Pass
Accelerated Aging (ICC-ES AC 188): Pass
Lay out horizontally on the eave, printed side up, with minimum 4” horizontal laps and 6” vertical laps.
Fasten with corrosive-resistant roofing nails with a minimum head diameter of 3/8 inches or plastic capped roofing nails with a minimum plastic cap diameter of 1 inch, according to pre-printed nail pattern.
Learn about our other sealant products featuring Marco’s tested-tough performance.
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